Ri0sVicenderIz3zysha Ri0sVicenderIz3zysha

21-11-2016
Mathematics

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how do I solve : COT pi/4 ...?

Respuesta :

HomertheGenius HomertheGenius

23-11-2016

cot x = cos x / sin x
cot π/4 = cot 45° = cos 45° / sin 45°
We know that sin 45° and sin 45° have the same value:
cos 45° = sin 45° = √2 / 2;
cos 45° / sin 45° = √2/2 : √2/2 = 1
Answer:
cot π/4 = 1

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